煤

The model is beneficial to researching on mechanism and process of coal spontaneous combustion.

煤分子的化学结构模型是根据煤分子的元素分析、红外光谱、核磁

Experiments of injecting steam in U-valve, feeding coal at the standpipe and the upper part of the lift were made, but no satisfactory results were obtained.

进行了蒸汽返料、返料侧加煤和提升管上部加煤探索试验，但没有取得有成效的结果。

A new kind of mathematics formula has been put forward to predict ash melting point of steam coal blending which is more precise in comparison with former mathematics.

采用数理统计中的t检验方法，从理论上证明了动力配煤主要指标的实测值与其单种煤理论加权平均值之间的线性关系。

The Current Status and Tends of Industrial Control Computer;2. The distinguishing and separating coal from stone were controlled by industrial control computer .

根据γ－射线穿过不同物质时衰减率不同，提出了区别煤和矸石的方法，设计了一套测试γ－射线强度的探测装置，并用工业控制机进行煤和矸石的识别、分拣。

Of coal, as contrasted with coal obtained from a strip mine .

关于煤，与从露天矿中开采的煤相对的。

In analysis,the three dimensional stress unit model is used based on the speciality of the strip mining.

根据煤的变形破坏特点，对煤变形采用弹塑性应变软化模型，根据条带开采的特殊性，用三维受力单元模型来分析。

Have disastrous environmental effects, especially strip or surface mining. Roughlyby strip mining.

有关煤的使用的最大问题之一在于煤的开采可能会造成灾难性的环境破坏，特别是掠夺式的开采或表面开采。

IR spectrum analysis shows that there are contain-oxygen functions and substitutive groups in coal macromolecular.

煤的红外光谱分析表明，煤中仍然存在含氧基团和一定数量的取代基，可得到芳氢率参数。

The effects of biomass on the hydrogen sulphide gas released from different coal pyrolysis have been studied.

研究表明：生物质与不同变质程度的煤的混合热解过程中H2S析出有着相似的规律，即生物质的加入使煤析出H2S提前，且随着生物质比例的增加，H2S在更低的温度下有较大的析出速度。

The rock mass of syenite porphyry in the north part of Babaoshan coal mine was demonstrated on its lithologic characters,geologic age and occurence.

从岩体的岩性、时代、产状等方面，论证了八宝山煤矿北部的正长斑岩体为一岩盖，下部找煤前景可观，可在井下实施巷探和定向钻探找煤，以延长矿井寿

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。